<template>
  <div>
    <h2>商品</h2>
   <MyLeft
   v-for="item in list"
   :key="item.id"
   :id="item.id"
   :pname="item.pname"
   :price="item.price"
   :info="item.info"
   @kanyidao="changePrice"></MyLeft> 
  </div>
</template>

<script>
import MyLeft from './components/MyLeft.vue'
export default {
  data() {
    return {
      list: [
          { id: 101, pname: '超级无敌棒棒糖', price: 15, info: '好吃，再来一根' },
          { id: 171, pname: '超级解渴水果茶', price: 80, info: '好甜，真好喝' },
          { id: 191, pname: '超级好吃大鸡腿', price: 60, info: '可口，下饭~' }
        ]
    }
  },
  methods:{
changePrice(val,id){
  let res = this.list.find(item=>item.id == id)
  res.price =res.price - val
}
  },
  components:{
    MyLeft
  }
}
</script>

<style>

</style>